[go: up one dir, main page]

EP0770588A4 - PROCESS FOR PRODUCING DIFLUOROMETHANE - Google Patents

PROCESS FOR PRODUCING DIFLUOROMETHANE

Info

Publication number
EP0770588A4
EP0770588A4 EP95923567A EP95923567A EP0770588A4 EP 0770588 A4 EP0770588 A4 EP 0770588A4 EP 95923567 A EP95923567 A EP 95923567A EP 95923567 A EP95923567 A EP 95923567A EP 0770588 A4 EP0770588 A4 EP 0770588A4
Authority
EP
European Patent Office
Prior art keywords
difluoromethane
dichloromethane
range
catalyst
hydrogen fluoride
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95923567A
Other languages
German (de)
French (fr)
Other versions
EP0770588A1 (en
EP0770588B1 (en
Inventor
Yasufu Yamada
Takashi Shibanuma
Takehide Tsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP0770588A1 publication Critical patent/EP0770588A1/en
Publication of EP0770588A4 publication Critical patent/EP0770588A4/en
Application granted granted Critical
Publication of EP0770588B1 publication Critical patent/EP0770588B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • B01J27/12—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

According to a process for producing difluoromethane by fluorinating dichloromethane with hydrogen fluoride in a liquid phase in the presence of a catalyst, wherein the reaction is conducted at a temperature within the range from 80 to 150 DEG C under a pressure within the range from 8 to 80 kg/cm<2> using a mixture of antimony pentafluoride and antimony trifluoride, or antimony pentafluoride as the fluorinating catalyst, difluoromethane can be economically and safely produced from dichloromethane and hydrogen fluoride.
EP95923567A 1994-07-01 1995-07-03 Process for producing difluoromethane Expired - Lifetime EP0770588B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP15115194 1994-07-01
JP151151/94 1994-07-01
JP15115194 1994-07-01
PCT/JP1995/001320 WO1996001241A1 (en) 1994-07-01 1995-07-03 Process for producing difluoromethane

Publications (3)

Publication Number Publication Date
EP0770588A1 EP0770588A1 (en) 1997-05-02
EP0770588A4 true EP0770588A4 (en) 1997-07-30
EP0770588B1 EP0770588B1 (en) 2000-10-04

Family

ID=15512479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95923567A Expired - Lifetime EP0770588B1 (en) 1994-07-01 1995-07-03 Process for producing difluoromethane

Country Status (13)

Country Link
US (1) US6407296B1 (en)
EP (1) EP0770588B1 (en)
JP (1) JP3572619B2 (en)
KR (1) KR100344864B1 (en)
CN (1) CN1062547C (en)
AT (1) ATE196758T1 (en)
AU (1) AU690708B2 (en)
BR (1) BR9508165A (en)
CA (1) CA2194151C (en)
DE (1) DE69519026T2 (en)
ES (1) ES2152408T3 (en)
PT (1) PT770588E (en)
WO (1) WO1996001241A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1010626A3 (en) * 1996-09-16 1998-11-03 Solvay Process for the preparation of difluoromethane.
US6023004A (en) * 1996-11-12 2000-02-08 Alliedsignal, Inc. Liquid phase catalytic fluorination of hydrochlorocarbon and hydrochlorofluorocarbon
WO1999036378A1 (en) * 1998-01-16 1999-07-22 Alliedsignal Inc. Method of producing fluorinated organic compounds
US6153802A (en) * 1998-05-08 2000-11-28 Alliedsignal Inc. Liquid-fluorination system and method
KR100512845B1 (en) * 2002-11-21 2005-09-07 울산화학주식회사 manufacturing method for difluoromethane
TW200516068A (en) * 2003-09-10 2005-05-16 Showa Denko Kk Process for production of hydrofluorocarbons, products thereof and use of the products
CN102527414B (en) * 2011-12-28 2013-01-02 临海市利民化工有限公司 Fluorination catalyst for preparing difluoromethane or monochlorodifluoromethane, preparation method and application
FR2994430B1 (en) 2012-08-10 2014-12-19 Arkema France PROCESS FOR PRODUCING DIFLUOROMETHANE
WO2020246611A1 (en) * 2019-06-07 2020-12-10 ダイキン工業株式会社 Method for producing reaction gas containing (e)-1,2-difluoroethylene

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005711A (en) * 1931-05-20 1935-06-18 Kinetic Chemicals Inc Preparation of organic fluorine compounds

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749375A (en) 1956-06-05 Fluorination
US2510872A (en) * 1944-08-03 1950-06-06 Atomic Energy Commission Method for regenerating antimony pentafluoride from spent antimony halides resulting from the fluorination of organic chlorides
US2749374A (en) 1950-02-24 1956-06-05 Dow Chemical Co Production of methylene fluoride
JPS5221482B2 (en) * 1974-02-05 1977-06-10
US4078007A (en) * 1975-10-03 1978-03-07 Halocarbon Products Corporation Fluorine substitution in 1,1,1-trihalomethanes
EP0128510A3 (en) 1983-06-07 1985-05-15 Showa Denko Kabushiki Kaisha Process for producing difluoromethane
JPS59231030A (en) * 1983-06-11 1984-12-25 Showa Denko Kk Preparation of difluoromethane
JPH0788591B2 (en) * 1987-04-21 1995-09-27 株式会社トクヤマ Corrosion prevention method
JPS6436556A (en) 1987-07-31 1989-02-07 Nippon Cable Kk Device for transferring cabin and cable gripper of ropeway
JPH0791202B2 (en) 1988-08-05 1995-10-04 旭硝子株式会社 Process for producing 1,1-dichloro-2,2,2-trifluoroethane
JPH085817B2 (en) 1990-06-18 1996-01-24 ダイキン工業株式会社 Method for producing 1-chloro-2,2,2-trifluoroethane
JPH0717882A (en) * 1993-07-05 1995-01-20 Daikin Ind Ltd Method for producing difluoromethane
JPH0791202A (en) 1993-09-22 1995-04-04 Mitsubishi Heavy Ind Ltd Steam turbine
KR960022411A (en) * 1994-12-28 1996-07-18 남경희 Method for preparing difluoromethane
JP3414562B2 (en) * 1995-10-13 2003-06-09 ダイキン工業株式会社 Method for producing 1,1,1,3,3-pentafluoropropane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005711A (en) * 1931-05-20 1935-06-18 Kinetic Chemicals Inc Preparation of organic fluorine compounds

Also Published As

Publication number Publication date
EP0770588A1 (en) 1997-05-02
KR100344864B1 (en) 2002-09-18
EP0770588B1 (en) 2000-10-04
JP3572619B2 (en) 2004-10-06
BR9508165A (en) 1997-12-23
US6407296B1 (en) 2002-06-18
AU2807995A (en) 1996-01-25
AU690708B2 (en) 1998-04-30
PT770588E (en) 2001-02-28
WO1996001241A1 (en) 1996-01-18
DE69519026D1 (en) 2000-11-09
CA2194151C (en) 2006-12-12
CN1151724A (en) 1997-06-11
ES2152408T3 (en) 2001-02-01
DE69519026T2 (en) 2001-05-17
CN1062547C (en) 2001-02-28
CA2194151A1 (en) 1996-01-18
ATE196758T1 (en) 2000-10-15

Similar Documents

Publication Publication Date Title
EP0770588A4 (en) PROCESS FOR PRODUCING DIFLUOROMETHANE
KR0171486B1 (en) Process for producing 1,1,1,3,3-pentafluoropropane
DE3681309D1 (en) METHOD OF PRODUCING FLUOROXYHALOGEN COMPOUNDS.
EP0767158A4 (en) PROCESS FOR PRODUCING DIFLUOROMETHANE
IN171977B (en)
GB1508921A (en) Preparation of sulphur fluorides
CA2178599A1 (en) Method for producing difluoromethane and 1,1,1,2-tetrafluoroethane
GR3023837T3 (en) Process for the preparation of 1,1,1,2-tetrafluoroethane
JPS5527138A (en) Preparation of 1,2,2,2-tetrafluoroethane
RU2041194C1 (en) Method of synthesis of octafluoropropane and a reactor for its realization
US4318866A (en) Chlorination of 4-methoxybenzoyl chloride
JPS6485946A (en) Method for purifying fluorocarbon compound
JPS6438034A (en) Production of fluorine-containing ethane
CA2087354A1 (en) Process for working up a hydrogen fluoride phase from a fluorination reaction mixture
DK44090A (en) CATALYST MATERIAL, AND PROCEDURES FOR THE PREPARATION OF AN OLEFIN POLYMER USING THE CATALYST MATERIAL
JPS5479207A (en) Preparation of 1,3-dichloropropene
DK0589381T3 (en) Process for preparing perfluoro-2-methyl-4-methoxypentane
MY108133A (en) Process for depolymerization of polyacrylonitrile using hot water
KR0134544B1 (en) Method for preparing difluoromethane
HUT68266A (en) A process for the preparation of solid perfluor-alkyl-bromides
JPS55126509A (en) Production of fluorosulfonic acid
JPS5559136A (en) Production of alpha,alpha,alpha-trifluoro-o-toluic fluoride
KR970069114A (en) Method for continuous production of 1-chloro-1,1-difluoroethane and 1,1,1-trifluoroethane
LAGOW Synthesis of organofluorine compounds by direct fluorination[Final Report, 1 Mar. 1974- 30 Jun. 1976]
JPS55102555A (en) Production of 2-chloro-p-toluenesulfonyl chloride

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961230

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

A4 Supplementary search report drawn up and despatched
AK Designated contracting states

Kind code of ref document: A4

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 19981218

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20001004

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20001004

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20001004

REF Corresponds to:

Ref document number: 196758

Country of ref document: AT

Date of ref document: 20001015

Kind code of ref document: T

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69519026

Country of ref document: DE

Date of ref document: 20001109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010104

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010104

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010105

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2152408

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20001116

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010703

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010703

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020201

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20080626

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080808

Year of fee payment: 14

Ref country code: DE

Payment date: 20080711

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20080715

Year of fee payment: 14

Ref country code: IT

Payment date: 20080728

Year of fee payment: 14

Ref country code: FR

Payment date: 20080718

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080709

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20090126

Year of fee payment: 14

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20100104

BERE Be: lapsed

Owner name: *DAIKIN INDUSTRIES LTD

Effective date: 20090731

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090703

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20100201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100104

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100202

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100201